#2408 test case

src/ifcopenshell-python/test/test_file_inverse.py

@@ -0,0 +1,42 @@
+import gc
+import sys
+import pytest
+import pprint
+import weakref
+import itertools
+import ifcopenshell
+import ifcopenshell.api
+
+
+def test_inverse_indices():
+    f =  ifcopenshell.file()
+
+    p0 = f.createIfcCartesianPoint((0.,0.,0.))
+    p1 = f.createIfcCartesianPoint((1.,0.,0.))
+    p2 = f.createIfcCartesianPoint((1.,1.,0.))
+
+    poly = f.createIfcPolyline((p0, p1, p2, p0))
+    place = f.createIfcAxis2Placement3D(p0)
+
+    pairs = f.get_inverse(p0, allow_duplicate=True, with_attribute_indices=True)
+
+    for inst, idx in pairs:
+        v = inst[idx]
+        if type(v) == tuple:
+            # @nb this doesn't account for nested lists
+            v = list(v)
+            i = v.index(p0)
+            v[i:i+1] = []
+        else:
+            v = p1
+        inst[idx] = v
+
+    # By now we expect to have removed *both* occurences of p0 from the
+    # polyline points and have overwritten the placement location.
+
+    assert poly.Points == (p1, p2)
+    assert place.Location == p1
+
+
+if __name__ == "__main__":
+    pytest.main(["-sx", __file__])